Kraken
We have posted an important announcement on our blog about the “Bitcoin Cash” (BCH) hard fork that will happen on August 1. Everyone should read the complete post, but here are a few highlights from the post:
Kraken plans to support BCH on our platform for funding and trading in the pairs BCH/XBT, BCH/USD, BCH/EUR
Clients holding Bitcoin (XBT) balances at the time of the fork will be credited with an equal amount of Bitcoin Cash (BCH) - e.g. 1 XBT will result in 1 XBT + 1 BCH
Clients borrowing Bitcoin (XBT) for margin positions at the time of the fork will be debited an equal amount of Bitcoin Cash (BCH) - e.g. if you borrow 1 XBT you must pay back 1 XBT + 1 BCH
Margin traders should read the blog post carefully to understand the added risk and how margin trading will work across the fork
The BCH fork is planned for 12:20 pm UTC on August 1
Bitcoin (XBT) funding will be halted at 11 am UTC and resumed sometime after the fork when it is safe to do so
Trading will continue across the fork, but we may need to halt trading briefly around the time of the fork so we can adjust balances and add pairs
Dear
Coinbase Customer,
We wanted to provide an update on proposed changes to the Bitcoin network and what that means for bitcoin stored on Coinbase. You can read more about what a digital currency fork is
https://blog.coinbase.com/what-is-a-bitcoin-fork-cba07fe73ef1.
Our first priority is the safety of customer funds. In the event of a fork, customer fiat currency (USD, EUR and GBP) and digital currencies (bitcoin, ether and litecoin) are safe.
On August 1st, 2017 there is a proposal to make changes to the bitcoin software. This proposal, known as Bitcoin Cash, is likely to create a fork in the Bitcoin network. This means that after August 1st, 2017 there are likely to be two versions of the Bitcoin blockchain and two separate digital currencies.
In the event of two separate blockchains after August 1, 2017 we will only support one version. We have no plans to support the Bitcoin Cash fork. We have made this decision because it is hard to predict how long the alternative version of bitcoin will survive and if Bitcoin Cash will have future market value.
This means if there are two separate digital currencies – bitcoin (BTC) and bitcoin cash (BCC) – customers with Bitcoin stored on Coinbase will only have access to the current version of bitcoin we support (BTC). Customers will not have access to, or be able to withdraw, bitcoin cash (BCC).
Customers who wish to access both bitcoin (BTC) and bitcoin cash (BCC) need to withdraw bitcoin stored on Coinbase before 11.59 pm PT July 31, 2017. If you do not wish to access bitcoin cash (BCC) then no action is required.
We plan to temporarily suspend bitcoin buy / sells, deposits and withdrawals on August 1, 2017 as the fork is likely to cause disruption to the bitcoin network. This means your funds will be safe but you will be unable to access your bitcoin (BTC) for a short period of time.
We will keep you updated on this event through our blog, status page and Twitter.
Our plans to handle potential BTC network disruptions
There are a number of proposals for technical changes to Bitcoin that may take effect in the coming weeks, so we are taking this opportunity to communicate our plans for managing any resulting network disruption. We take no position on the desirability of any particular proposal nor do we have a stake in any outcome. Our primary concern is protecting our users and their tokens.
As we have done in the past when faced with similar circumstances (1), any decision we make will be with the security of users' tokens in mind. We will be disabling deposits and withdrawals of Bitcoin (and all BTC related tokens) any time we deem necessary to ensure that all tokens stored on Poloniex remain safe. The length of any possible downtime is unknown as this is highly dependent on network stability. Our objective will be to bring the wallet back online and enable deposits and withdrawals as soon as we believe it is safe to do so. Trading will be unaffected during these periods.
At this time, we cannot commit to supporting any specific blockchain that may emerge if there is a blockchain split. Even if two viable blockchains emerge, we may or may not support both and will make such a decision only after we are satisfied that we can safely support either blockchain in an enterprise environment. If we decide to support and make available derivative blockchain tokens after a blockchain split, note that if you have your tokens on loan at the time of a split, we cannot distribute the derivative tokens to you, the lender, as you would not possess them. Such loaned tokens can, and often do, leave the platform. (2)
If you don't want to leave the decision of which Bitcoin tokens to support (or recognize as valid) to a 3rd party, you should not keep your tokens on any 3rd party platform. We encourage you to follow our Twitter and Notices board for updates.
- The Poloniex Team
I thought it was gonna be for the EPL. 
